Links to topics on this page: Peripherals are devices that are attached to a computer system to enhance its capabilities. Peripherals include input devices, output devices, storage devices, and communications devices.
The term peripheral is used to describe those devices that are optional in nature, as opposed to hardware that is either demanded or always required in principle.
There are all different kinds of peripherals you can add your computer. The main disctinction among peripherals is the way they are connected to your computer.
They can be connected internally or externally. Unlike a point-to-point connection, a bus can logically connect several peripherals over the same set of wires. Each bus defines its set of connectors to physically plug devices, cards or cables together.
There are two types of buses: Internal buses are connections to various internal components. External buses are connections to various external components.
There are different kinds of slots that internal and external devices can connect to. Different computers come with different kinds and number of slots.
This kind of bus is being succeeded by PCI Express. Video cards have outgrown the capabilities of PCI because of their higher bandwidth requirements.
PCI express is not a bus but instead a point-to-point conection of serial links called lanes. PCMCIA was originally designed for computer memory expansion, but the existence of a usable general standard for notbeook peripherals led to many kinds of devices being made available in this form.
Typical devices include network cards, modems, and hard disks. AGP cards and motherboards are still available to buy, but they are becoming less common. Some video cards offer added functions, such as video capture, TV tuner adapter, ability to connect multiple monitors, and others.
Most video cards all share similar components. They include a graphics processing unit GPU which is a dedicated microprocessor optimized for 3D graphics rendering.
If the video card is integrated in the motherboard, it may use the computer RAM memory. If it is not it will have its own video memory called Video RAM. This kind of memory can range from MB to 2GB. A video card also has a RAMDAC Random Access Memory Digital-to-Analog Converter which takes responsibility for turning the digital signals produced by the computer processor into an analog signal which can be understood by the computer display.A device_ is a type of utility software that helps a peripheral device establish communication with a computer.
driver A digital camera uses a(n)_ card, because each photo its owner takes requires megabytes of storage, and the device has a high storage capacity and access speed. Peripheral device, also known as peripheral, computer peripheral,input-output device, or input/output device, any of various devices (including sensors) used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer.
A peripheral device connects to a computer system to add functionality. Examples are a mouse, keyboard, monitor, printer and scanner. Learn about the different types of peripheral devices and how. Apr 12, · Free Computer Skills Course: Learn about the different types of ports and connectors on a computer.
Transcript: All of these peripherals need a way to connect to the CPU, so let’s take a look . Peripherals are devices that are attached to a computer system to enhance its capabilities.
Peripherals include input devices, output devices, storage devices, and communications devices. A video card that allows output to be sent to a monitor is an example of an interface card. The part of the. Nov 15, · Peripheral devices are not for the computer's benefit - they're to aid the user.
A computer will function perfectly well without a monitor, keyboard, r inter, or even a modem.